Contents

# encoding: utf-8

module Rubocop
  module Cop
    class AvoidPerlisms < Cop
      PREFERRED_VARS = {
        '$:' => '$LOAD_PATH',
        '$"' => '$LOADED_FEATURES',
        '$0' => '$PROGRAM_NAME',
        '$!' => '$ERROR_INFO from English library',
        '$@' => '$ERROR_POSITION from English library',
        '$;' => '$FS or $FIELD_SEPARATOR from English library',
        '$,' => '$OFS or $OUTPUT_FIELD_SEPARATOR from English library',
        '$/' => '$RS or $INPUT_RECORD_SEPARATOR from English library',
        '$\\' => '$ORS or $OUTPUT_RECORD_SEPARATOR from English library',
        '$.' => '$NR or $INPUT_LINE_NUMBER from English library',
        '$_' => '$LAST_READ_LINE from English library',
        '$>' => '$DEFAULT_OUTPUT from English library',
        '$<' => '$DEFAULT_INPUT from English library',
        '$$' => '$PID or $PROCESS_ID from English library',
        '$?' => '$CHILD_STATUS from English library',
        '$~' => '$LAST_MATCH_INFO from English library',
        '$=' => '$IGNORECASE from English library',
        '$*' => '$ARGV from English library or ARGV constant',
        '$&' => '$MATCH from English library',
        '$`' => '$PREMATCH from English library',
        '$\'' => '$POSTMATCH from English library',
        '$+' => '$LAST_PAREN_MATCH from English library'
      }

      def on_gvar(node)
        global_var, = *node
        global_var = global_var.to_s

        if PREFERRED_VARS[global_var]
          add_offence(
            :convention,
            node.loc.line,
            "Prefer #{PREFERRED_VARS[global_var]} over #{global_var}."
          )
        end

        super
      end
    end
  end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
rubocop-0.8.3	lib/rubocop/cop/avoid_perlisms.rb
rubocop-0.8.2	lib/rubocop/cop/avoid_perlisms.rb
rubocop-0.8.1	lib/rubocop/cop/avoid_perlisms.rb
rubocop-0.8.0	lib/rubocop/cop/avoid_perlisms.rb